Endeavour's unique process to make rigid insulation (SFC) ensures that the fiber orientation is perpendicular to the direction of thermal radiation to achieve an extremely low thermal conductivity. This makes it an excellent material for high temperature SiC crystal growth process. Due to its short fiber structure, it is suitable for both induction and resistance heating. With homogeneous structure, our SFC rigid board or cylinder can be machined accurately and easily in any direction with a clean homogeneous surface finish, allowing manufacture of complex shapes. This is perfectly suitable for heat shield of silicon crystal growth.